金丝雀

某中学生甲，17周岁。一日到同学乙家玩耍，将乙家价值3000元的名贵金丝雀放跑，乙的父母一年后起诉甲，要求赔偿。下列说法正确的是（）

A、甲应当负赔偿责任

B、甲的父母应负赔偿责任

C、甲如有自己的财产，应负赔偿责任

D、甲如无经济能力，应由其父母承担赔偿责任

中国饮食文化博大精深，下列关于中国饮食文化描述错误的是（　）。

A.麻婆豆腐是四川菜中的名品

B.通常所说的燕窝是一种金丝雀筑的巢

C.满汉全席汇集了宫廷满席和汉席的精华，是中华美食的缩影

D.烹饪食物用的五香是指丁香、茴香子、八角、桂皮、胡椒

《长恨歌》讲述的是—个女人四十年的情与爱，作者细腻而绚烂的笔写得哀婉动人，__________。王琦瑶从“上海小姐”到“金丝雀”，最后回归普通百姓，她内心的情感潮水劫从未入画横线部分最恰当的一项是（）。A．跌宕起伏平复B．汹涌澎湃平息C．汹涌澎湃平复D．跌宕起伏平息

下图表示植物不同器官对生长素的反应。请据图回答：

（1)A点所对应的生长素浓度对茎生长的效应是___\_，对芽生长的效应是_______。（2)某生物兴趣小组开展“萘乙酸（生长素类似物）促进某种植物插条生根的最适浓度是多少”的探究实验，按照下表设计浓度梯度（单位：mol/L)：

为了进一步准确地测定最适浓度，应当采取什么改进措施？__\_在农业生产上用萘乙酸溶液浸泡植物插条生根时，除了考虑最适浓度外，还应考虑的因素有________（至少回答两点)。（3)有人发现在植物根的向地性弯曲部位除了生长素的分布不同外，在近地侧同时也集中了大部分的乙烯，由此可知：植物的生长发育过程是_______的结果。（4)在植物的生长发育过程中，达尔文在研究生长素时，将带有尖端的金丝雀虉草的胚芽鞘（A)和除去尖端的金丝雀虉草的胚芽鞘（B)置于单侧光下，结果A弯向光源生长，B不生长也不弯曲，该实验的推论是__\_。植物的向光性对植物叶片生长的意义是________。

1880年首次用金丝雀菸草（phalaris)进行向光性实验的是__\_。1928年首次从燕麦胚芽鞘尖分离出与生长有关的物质的是___\_。黑泽英一（E．Kurosawa)在1926年研究___\_时发现了赤霉素。1955年，___\_等人首次从高压灭菌的鲱鱼精子DNA中分离出___\_。D．C．Lethan和C．0．Miller在1963年首次从未成熟玉米子中分离出天然的细胞分裂素物质，即______。

下列哪一选项属于《反不正当竞争法》和《反垄断法》均明文禁止的行为？（　）

A.甲省政府规定，凡外省生产的汽车，必须经过本省交管部门的技术安全认证，领取省内销售许可证以后，方可在本省市场销售

B.乙省政府决定，在进出本省的交通要道设置关卡，阻止本省生产的猪肉运往外省

C.丙省政府规定，省内各机关和事业单位在公务接待等活动时需要消费香烟的，只能选用本省生产的“金丝雀”牌香烟，否则财政不予报销

D.丁省政府规定，外省生产的化肥和农药在本省销售的，一律按销售额加收15％的环保附加费

下列哪一选项属于《反不正当竞争法》和《反垄断法》均明文禁止的行为?（）

• A、甲省政府规定，凡外省生产的汽车，必须经过本省交管部门的技术安全认证，领取省内销售许可证以后，方可在本省市场销售

• B、乙省政府决定，在进出本省的交通要道设置关卡，阻止本省生产的猪肉运往外省

• C、丙省政府规定，省内各机关和事业单位在公务接待等活动时需要消费香烟的，只能选用本省生产的“金丝雀”牌香烟，否则财政不予报销

• D、丁省政府规定，外省生产的化肥和农药在本省销售的，一律按销售额加收15%的环保附加费

下列哪一选项属于《反不正当竞争法》和《反垄断法》均明文禁止的行为？
A.甲省政府规定，凡外省生产的汽车，必须经过本省交管部门的技术安全认证，领取省内销售许可证以后，方可在本省市场销售B.乙省政府决定，在进出本省的交通要道设置关卡，阻止本省生产的猪肉运往外省C.丙省政府规定，省内各机关和事业单位在公务接待等活动时需要消费香烟的，只能选用本省生产的“金丝雀”牌香烟，否则财政不予报销D.丁省政府规定，外省生产的化肥和农药在本省销售的，一律按销售额加收15%的环保附加费

回答题。

Norwich

Norwich, the capital of the part of Britain known as East Anglia, has been in existence for more than two thousand years. It began as a small village beside the River Wensum. At the time of the Norman invasion in 1066 it had grown to become one of the largest towns in England.

With two cathedrals and a mosque (清真寺 ) , Norwich has long been a popular centre for various religions. The first cathedral was built in 1095 and has recently celebrated its 900th anniversary, while Norwich itself had a year of celebration in 1994 to mark the 800th anniversary of the city receiving a Royal Charter. This allowed it to be called a city and to govern itself independently.

Today, in comparison with places like London or Manchester, Norwich is quite small, with a population of around 150 000, but in the 16th century Norwich was the second largest city of England. It continued to grow for the next 300 years and got richer and richer, becoming famous for having as many churches as there are weeks in the year and as many pubs as there are days in the year.

Nowadays, there are far fewer churches and pubs, but in 1964 the University of East Anglia was built in Norwich with its fast-growing student population and its success as a modern commercial centre (Norwich is the biggest centre for insurance services outside London ) , the city now has a wide choice of entertainment : theatres, cinemas, nightclubs, busy cafes, excellent restaurants, and a number of arts and leisure centres. There is also a football team, whose colours are green and yellow. The team is known as "The Canaries (金丝雀 )" , though nobody can be sure why.

Now the city&39;s attractions include another important development, a modern shopping centre called "The Castle Mall" . The people of Norwich lived with a very large hole in the middle of their city for over two years, as builders dug up the main car park. Lorries moved nearly a million tons of earth so that the roof of the Mall could become a city centre park with attractive water pools and hundreds of trees. But the local people are really pleased that the old open market remains, right in the heart of the city and next to the new development. Both areas continue to do good business, proving that Norwich has managed to mix the best of the old and the new.

The River Wensum flows by Norwich. 查看材料

A.Right

B.Wrong

C.Not mentioned

下面是某位教师进行“生长素的发现”一节教学时，关于达尔文实验的教学片段。

“生长素的发现——达尔文实验”的教学片段师：植物的向光性是一个普遍存在的生物学现象。最早对这个实验现象进行研究的人是达尔文，他以金丝雀籙草的胚芽鞘作为实验材料进行了实验（展示实验过程示意图）。在这个实验中，变量是什么？生：光照。师：自变量是单侧光。谁来描述一下实验现象？生：黑暗条件下，胚芽鞘竖直向上生长；而单侧光照下，胚芽鞘向光弯曲生长。师：通过这个实验，能得到什么结论呢？生：胚芽鞘的生长与单侧光是有关系的。……在该教学片段中，教学的主要意图是（）。
A.帮助学生理解科学研究是植根于特定文化背景的B.帮助学生理解科学研究的基本设计思路和分析方法C.帮助学生理解科学知识具有暂定性，是不断发展的D.帮助学生理解科学是众多科学家长期共同研究的成果

世界上共有鸟9000多种，我国有1186种，占13%；除企鹅、鸵鸟等鸟类不会飞翔以外，绝大多数鸟类几乎都能飞行． 鸟是怎样适应空中飞行生活的？它的哪些结构与飞行相适应呢？请同学们试从如下方面进行探究并论述．（1）鸟飞行的动力器官是什么？__（2）分析如下资料：鸟的食量惊人，蜂鸟一天所吃的食物，约等于体重的2倍．绿头鸭吃进的食物，经消化吸收后形成残渣，0.5小时后就随粪便排出．这则资料说明鸟的消化系统有什么样的特点：__（3）比较鸟与人的心脏大小及心率

心脏

占体重的百分比/%

心搏次数/分

人

0.42

72

鸽

1.71

135-244

金丝雀

1.68

514

蜂鸟

2.37

615该表格说明什么？__

（4）鸟的身体里有发达的气囊．这些气囊一端与肺相通，分布在内脏器官之间，有的还突入到骨的空腔里．分析这则资料鸟类的呼吸系统比起其他动物有什么特点？__（5）在探究鸟适于飞行的特点时，我们用到了哪些探究方法？______．

Where Have All the Frogs Gone? In the 1980s, scientists around the world began to notice something strange： Frogs were disappearing. More recent research has shown that many kinds of amphibians （两栖动物）are declining or have become extinct. They have been around for a long time — over350 million years. Why are they dying out now? Scientists are seriously concerned about this question. First of all, amphibians are an important source of scientific and medical knowledge. By studying amphibians, scientists have learned about new substances that could be very useful for treating human diseases.Further research could lead to many more discoveries, but that will be impossible if the amphibians disappear. The most serious aspect of amphibian loss, however, goes beyond the amphibians themselves. Scientists are beginning to think about what amphibian decline means for the planet as a whole. If the earth is becoming unlivable for amphibians, is it also becoming unlivable for other kinds of animals and human beings as well? Scientists now believe that amphibian decline is due to several environmental factors. One of these factors is the destruction of habitat, the natural area where an animal lives. Amphibians are very sensitive to changes in their habitat. If they cannot find the right conditions, they will not lay their eggs. These days, as wild areas are covered with houses, roads, farms, or factories, many kinds of amphibians are no longer laying eggs. For example, the arroyo toad （蟾蜍）of southern California will only lay its eggs on the sandy bottom of a slow-moving stream. There are very few streams left in southern California, and those streams are often muddy because of building projects. Notsurprisingly, the arroyo toad is now in danger of extinction. There are a number of other factors in amphibian decline. Pollution is one of them. In many industrial areas, air pollution has poisoned the rain, which then falls on ponds and kills the frogs and toads that live there. In farming areas, the heavy use of chemicals on crops has also killed off amphibians. Another factor is that air pollution has led to increased levels of ultraviolet (UV) light. This endangers amphibians, which seem to be especially sensitive to UV light. And finally, scientists have discovered a new disease that seems to be killing many species of amphibians in different parts of the world. All these reasons for the disappearance of amphibians are also good reasons for more general concern. The destruction of land, the pollution of the air and the water, the changes in our atmosphere, the spread of diseases — these factors affect human beings, too. Amphibians are especially sensitive to environmental change. Perhaps they are like the canary（金丝雀） bird that coal miners once used to take down into the mines to detect poisonous gases. When the canary became ill or died, the miners knew that dangerous gases were near and their own lives were in danger.Amphibians lay their eggs A in any stream they can find.B in places without UV light,C only on sand.D only in the right conditions.

Where Have All the Frogs Gone? In the 1980s, scientists around the world began to notice something strange： Frogs were disappearing. More recent research has shown that many kinds of amphibians （两栖动物）are declining or have become extinct. They have been around for a long time — over350 million years. Why are they dying out now? Scientists are seriously concerned about this question. First of all, amphibians are an important source of scientific and medical knowledge. By studying amphibians, scientists have learned about new substances that could be very useful for treating human diseases.Further research could lead to many more discoveries, but that will be impossible if the amphibians disappear. The most serious aspect of amphibian loss, however, goes beyond the amphibians themselves. Scientists are beginning to think about what amphibian decline means for the planet as a whole. If the earth is becoming unlivable for amphibians, is it also becoming unlivable for other kinds of animals and human beings as well? Scientists now believe that amphibian decline is due to several environmental factors. One of these factors is the destruction of habitat, the natural area where an animal lives. Amphibians are very sensitive to changes in their habitat. If they cannot find the right conditions, they will not lay their eggs. These days, as wild areas are covered with houses, roads, farms, or factories, many kinds of amphibians are no longer laying eggs. For example, the arroyo toad （蟾蜍）of southern California will only lay its eggs on the sandy bottom of a slow-moving stream. There are very few streams left in southern California, and those streams are often muddy because of building projects. Notsurprisingly, the arroyo toad is now in danger of extinction. There are a number of other factors in amphibian decline. Pollution is one of them. In many industrial areas, air pollution has poisoned the rain, which then falls on ponds and kills the frogs and toads that live there. In farming areas, the heavy use of chemicals on crops has also killed off amphibians. Another factor is that air pollution has led to increased levels of ultraviolet (UV) light. This endangers amphibians, which seem to be especially sensitive to UV light. And finally, scientists have discovered a new disease that seems to be killing many species of amphibians in different parts of the world. All these reasons for the disappearance of amphibians are also good reasons for more general concern. The destruction of land, the pollution of the air and the water, the changes in our atmosphere, the spread of diseases — these factors affect human beings, too. Amphibians are especially sensitive to environmental change. Perhaps they are like the canary（金丝雀） bird that coal miners once used to take down into the mines to detect poisonous gases. When the canary became ill or died, the miners knew that dangerous gases were near and their own lives were in danger.Coal miners once used the canary bird to detect A poisonous gases.B air pollution,C water leakage.D radiation.

Where Have All the Frogs Gone? In the 1980s, scientists around the world began to notice something strange： Frogs were disappearing. More recent research has shown that many kinds of amphibians （两栖动物）are declining or have become extinct. They have been around for a long time — over350 million years. Why are they dying out now? Scientists are seriously concerned about this question. First of all, amphibians are an important source of scientific and medical knowledge. By studying amphibians, scientists have learned about new substances that could be very useful for treating human diseases.Further research could lead to many more discoveries, but that will be impossible if the amphibians disappear. The most serious aspect of amphibian loss, however, goes beyond the amphibians themselves. Scientists are beginning to think about what amphibian decline means for the planet as a whole. If the earth is becoming unlivable for amphibians, is it also becoming unlivable for other kinds of animals and human beings as well? Scientists now believe that amphibian decline is due to several environmental factors. One of these factors is the destruction of habitat, the natural area where an animal lives. Amphibians are very sensitive to changes in their habitat. If they cannot find the right conditions, they will not lay their eggs. These days, as wild areas are covered with houses, roads, farms, or factories, many kinds of amphibians are no longer laying eggs. For example, the arroyo toad （蟾蜍）of southern California will only lay its eggs on the sandy bottom of a slow-moving stream. There are very few streams left in southern California, and those streams are often muddy because of building projects. Notsurprisingly, the arroyo toad is now in danger of extinction. There are a number of other factors in amphibian decline. Pollution is one of them. In many industrial areas, air pollution has poisoned the rain, which then falls on ponds and kills the frogs and toads that live there. In farming areas, the heavy use of chemicals on crops has also killed off amphibians. Another factor is that air pollution has led to increased levels of ultraviolet (UV) light. This endangers amphibians, which seem to be especially sensitive to UV light. And finally, scientists have discovered a new disease that seems to be killing many species of amphibians in different parts of the world. All these reasons for the disappearance of amphibians are also good reasons for more general concern. The destruction of land, the pollution of the air and the water, the changes in our atmosphere, the spread of diseases — these factors affect human beings, too. Amphibians are especially sensitive to environmental change. Perhaps they are like the canary（金丝雀） bird that coal miners once used to take down into the mines to detect poisonous gases. When the canary became ill or died, the miners knew that dangerous gases were near and their own lives were in danger.Scientists think that the decline of amphibians could A cause environmental change.B cause a decline in other kinds of animals.C be a warning signal for human beings.D be a good sign for human beings.

共用题干第二篇
Where Have All the Frogs Gone?
In the 1980s,scientists around the world began to notice something strange:Frogs
were disappearing. More recent research has shown that many kinds of amphibians（两栖
动物）are declining or have become extinct. They have been around for a long time一over
350 million years.Why are they dying out now?
Scientists are seriously concerned about this question.First of all,amphibians are an
important source of scientific and medical knowledge.By studying amphibians,scientists
have learned about new substances that could be very useful for treating human diseases.
Further research could lead to many more discoveries,but that will be impossible if the
amphibians disappear.
The most serious aspect of amphibian loss,however,goes beyond the amphibians
themselves.Scientists are beginning to think about what amphibian decline means for the
planet as a whole.If the earth is becoming unlivable for amphibians,is it also becoming
unlivable for other kinds of animals and human beings as well?
Scientists now believe that amphibian decline is due to several environmental factors.
One of these factors is the destruction of habitat,the natural area where an animal lives.
Amphibians are very sensitive to changes in their habitat.If they cannot find the right
conditions,they will not lay their eggs一These days,as wild areas are covered with
houses,roads,farms,or factories,many kinds of amphibians are no longer laying eggs.
For example,the arroyo toad（蟾蜍）of southern California will only lay its eggs on the
sandy bottom of a slow-moving stream.There are very few streams left in southern
California,and those streams are often muddy because of building projects. Not
surprisingily,the arrovo toad is now in danaer of extinction.
There are a number of other factors in amphibian decline.Pollution is one of them.In
many industrial areas,air pollution has poisoned the rain,which then falls on ponds and
kills the frogs and toads that live there,In farming areas,the heavy use of chemicals on
crops has also killed off arrtphibians.Another factor is that air pollution has led to increased
levels of ultraviolet (UV) light. This endangers amphibians, which seem to be especially
sensitive to UV light. And finally, scientists have discovered a new disease that seems to
be killing many species of arnpttibians in different parts of the world.
All these reasons for the disappearance of amphibians are also good reasons for more
general concern. The destrriction of land, the pollcition of the air and the water, the
changes in our atmosphere, the spread of diseases-these factors affect human beings,
too. Amphibians are especially sensitive to environmental change. Perhaps they are like
the canary （金丝雀）bird that coal miners once used to take down into the mines to detect
poisonous gases. When the canary became ill or died,the miners knew that dangerous
gases were near and their own lives were in danger. Amphibians lay their eggsA:in any stream they can find. B:in places without UV light.C:only on sand. D:only in the right conditions.

共用题干第二篇
Where Have All the Frogs Gone?
In the 1980s,scientists around the world began to notice something strange:Frogs
were disappearing. More recent research has shown that many kinds of amphibians（两栖
动物）are declining or have become extinct. They have been around for a long time一over
350 million years.Why are they dying out now?
Scientists are seriously concerned about this question.First of all,amphibians are an
important source of scientific and medical knowledge.By studying amphibians,scientists
have learned about new substances that could be very useful for treating human diseases.
Further research could lead to many more discoveries,but that will be impossible if the
amphibians disappear.
The most serious aspect of amphibian loss,however,goes beyond the amphibians
themselves.Scientists are beginning to think about what amphibian decline means for the
planet as a whole.If the earth is becoming unlivable for amphibians,is it also becoming
unlivable for other kinds of animals and human beings as well?
Scientists now believe that amphibian decline is due to several environmental factors.
One of these factors is the destruction of habitat,the natural area where an animal lives.
Amphibians are very sensitive to changes in their habitat.If they cannot find the right
conditions,they will not lay their eggs一These days,as wild areas are covered with
houses,roads,farms,or factories,many kinds of amphibians are no longer laying eggs.
For example,the arroyo toad（蟾蜍）of southern California will only lay its eggs on the
sandy bottom of a slow-moving stream.There are very few streams left in southern
California,and those streams are often muddy because of building projects. Not
surprisingily,the arrovo toad is now in danaer of extinction.
There are a number of other factors in amphibian decline.Pollution is one of them.In
many industrial areas,air pollution has poisoned the rain,which then falls on ponds and
kills the frogs and toads that live there,In farming areas,the heavy use of chemicals on
crops has also killed off arrtphibians.Another factor is that air pollution has led to increased
levels of ultraviolet (UV) light. This endangers amphibians, which seem to be especially
sensitive to UV light. And finally, scientists have discovered a new disease that seems to
be killing many species of arnpttibians in different parts of the world.
All these reasons for the disappearance of amphibians are also good reasons for more
general concern. The destrriction of land, the pollcition of the air and the water, the
changes in our atmosphere, the spread of diseases-these factors affect human beings,
too. Amphibians are especially sensitive to environmental change. Perhaps they are like
the canary （金丝雀）bird that coal miners once used to take down into the mines to detect
poisonous gases. When the canary became ill or died,the miners knew that dangerous
gases were near and their own lives were in danger. Coal miners once used the canary bird to detectA:poisonous gases. B:air pollution.C:water leakage. D:radiation.

共用题干第二篇
Where Have All the Frogs Gone?
In the 1980s,scientists around the world began to notice something strange:Frogs
were disappearing. More recent research has shown that many kinds of amphibians（两栖
动物）are declining or have become extinct. They have been around for a long time一over
350 million years.Why are they dying out now?
Scientists are seriously concerned about this question.First of all,amphibians are an
important source of scientific and medical knowledge.By studying amphibians,scientists
have learned about new substances that could be very useful for treating human diseases.
Further research could lead to many more discoveries,but that will be impossible if the
amphibians disappear.
The most serious aspect of amphibian loss,however,goes beyond the amphibians
themselves.Scientists are beginning to think about what amphibian decline means for the
planet as a whole.If the earth is becoming unlivable for amphibians,is it also becoming
unlivable for other kinds of animals and human beings as well?
Scientists now believe that amphibian decline is due to several environmental factors.
One of these factors is the destruction of habitat,the natural area where an animal lives.
Amphibians are very sensitive to changes in their habitat.If they cannot find the right
conditions,they will not lay their eggs一These days,as wild areas are covered with
houses,roads,farms,or factories,many kinds of amphibians are no longer laying eggs.
For example,the arroyo toad（蟾蜍）of southern California will only lay its eggs on the
sandy bottom of a slow-moving stream.There are very few streams left in southern
California,and those streams are often muddy because of building projects. Not
surprisingily,the arrovo toad is now in danaer of extinction.
There are a number of other factors in amphibian decline.Pollution is one of them.In
many industrial areas,air pollution has poisoned the rain,which then falls on ponds and
kills the frogs and toads that live there,In farming areas,the heavy use of chemicals on
crops has also killed off arrtphibians.Another factor is that air pollution has led to increased
levels of ultraviolet (UV) light. This endangers amphibians, which seem to be especially
sensitive to UV light. And finally, scientists have discovered a new disease that seems to
be killing many species of arnpttibians in different parts of the world.
All these reasons for the disappearance of amphibians are also good reasons for more
general concern. The destrriction of land, the pollcition of the air and the water, the
changes in our atmosphere, the spread of diseases-these factors affect human beings,
too. Amphibians are especially sensitive to environmental change. Perhaps they are like
the canary （金丝雀）bird that coal miners once used to take down into the mines to detect
poisonous gases. When the canary became ill or died,the miners knew that dangerous
gases were near and their own lives were in danger. Scientists think that the decline of amphibians couldA:cause environmental change.B:cause a decline in other kinds of animals.C:be a warning signal for human beings.D:be a good sign for human beings.

共用题干第二篇
Where Have All the Frogs Gone?
In the 1980s,scientists around the world began to notice something strange:Frogs
were disappearing. More recent research has shown that many kinds of amphibians（两栖
动物）are declining or have become extinct. They have been around for a long time一over
350 million years.Why are they dying out now?
Scientists are seriously concerned about this question.First of all,amphibians are an
important source of scientific and medical knowledge.By studying amphibians,scientists
have learned about new substances that could be very useful for treating human diseases.
Further research could lead to many more discoveries,but that will be impossible if the
amphibians disappear.
The most serious aspect of amphibian loss,however,goes beyond the amphibians
themselves.Scientists are beginning to think about what amphibian decline means for the
planet as a whole.If the earth is becoming unlivable for amphibians,is it also becoming
unlivable for other kinds of animals and human beings as well?
Scientists now believe that amphibian decline is due to several environmental factors.
One of these factors is the destruction of habitat,the natural area where an animal lives.
Amphibians are very sensitive to changes in their habitat.If they cannot find the right
conditions,they will not lay their eggs一These days,as wild areas are covered with
houses,roads,farms,or factories,many kinds of amphibians are no longer laying eggs.
For example,the arroyo toad（蟾蜍）of southern California will only lay its eggs on the
sandy bottom of a slow-moving stream.There are very few streams left in southern
California,and those streams are often muddy because of building projects. Not
surprisingily,the arrovo toad is now in danaer of extinction.
There are a number of other factors in amphibian decline.Pollution is one of them.In
many industrial areas,air pollution has poisoned the rain,which then falls on ponds and
kills the frogs and toads that live there,In farming areas,the heavy use of chemicals on
crops has also killed off arrtphibians.Another factor is that air pollution has led to increased
levels of ultraviolet (UV) light. This endangers amphibians, which seem to be especially
sensitive to UV light. And finally, scientists have discovered a new disease that seems to
be killing many species of arnpttibians in different parts of the world.
All these reasons for the disappearance of amphibians are also good reasons for more
general concern. The destrriction of land, the pollcition of the air and the water, the
changes in our atmosphere, the spread of diseases-these factors affect human beings,
too. Amphibians are especially sensitive to environmental change. Perhaps they are like
the canary （金丝雀）bird that coal miners once used to take down into the mines to detect
poisonous gases. When the canary became ill or died,the miners knew that dangerous
gases were near and their own lives were in danger. The arroyo toad is disappearing becauseA:it has been threatened by frogs. B:it is losing its habitat.C:a disease has been killing its eggs. D:it can't bear the cold of winter.

阅读下文。完成73～76题。

美国科学家近期对山雀的行为进行研究，发现这些田鼠般大小的鸟，能把为过冬而贮藏种子的地方牢记心里，不管是5处10处，甚至更多的地方，它们均能找到这些秘密的仓库。在对燕雀、金丝雀的研究中，科学家们听到它们每年春天唱的歌，“曲目”同往年完全不同，既新鲜又动听。这说明，鸟类的大脑有特殊的学习记忆能力。’

对42只山雀的脑部进行解剖，观察到海马回的细胞每年都在更新。冬季来临之前，更新量最大，每年约有2%的神经元被新生长的神经细胞取代。燕雀的海马回也有类似的情况。科学家于是得出结论：。

以往的研究认为，神经突触是记忆单元，大脑的学习能力在于大脑皮层细胞之间相连网络的增加。尽管神经细胞不再生，但突触能不断长出，使树型思维结构不断分叉，而保持较好的记忆能力。而现在的研究则认为，记忆单元是整个神经元，神经细胞能再生，至少山雀是这样的。

为了产生良好的、长达数月或数年的记忆，需要整个神经元参加，而不是几个突触。这是部分脑科学家最新研究得出的结论。但是，鸟类的此种学习系统能否适用于人类，还有待进一步的实验研究。现在已有证据确认，人、猴、啮齿类动物记忆的衰退，与海马回受损有关。实际，传统的突触网络记忆说——不断强化、产生深刻记忆的观点，有说服力的证据也不多。神经元更新学习记忆，为揭开大脑之谜指示了新的研究方向。

第73题第2段段末横线上填入的句子最确切的一项是（）。

A．山雀、燕雀都有学习记忆能力

B．鸟类的大脑有特殊的学习记忆能力

C．鸟类的学习记忆能力同神经元的更新相关

D．研究鸟类的学习记忆能力，要对脑部进行解剖

根据所给材料设计活动方案

要求：1.设计应符合语言教育目标和幼儿年龄发展特点;2.任意选择一种活动类型设计相应的活动方案，可提炼“材料2"主题设计谈话活动或听说游戏方案，可围绕“材料2”设计讲述活动、文学作品学习活动或早期阅读;3.活动方案门方案结构完整，包含活动目标、活动准备、活动过程等内容;4.按照活动设计与实施的步骤列出活动过程每一环节的要点.

材料1：中班幼儿语言教育目标

（1)谈话活动：能集中注意力，耐心倾听别人谈话不打断别人的话乐意与同伴交流，能大方地在集体面前说话能说普通话，较连贯地表达自己的意思学会围绕一定的话题谈话，不跑题;学会用轮流的方式谈话，不抢着讲，不乱插嘴继续学习交往语言，提高语言交往能力。

（2)讲述活动：养成先仔细观察，后表达讲述的习惯;逐步学会理解图片和情景中展示的事件顺序;能主动地在集体面前讲述，声音响亮，句式完整;学习按照一定的顺序讲述实物、图片和情景的内容能积极地倾听别人的讲述内容，发现异同，并从中学习好的讲述方法。

（3)听说游戏：在游戏中巩固练习发音，正确运用代词、方位词、副词、动词、连词和介词等能说简单而完整的合成句;能听懂并理解多重游戏规则;学习较迅速地领悟游戏中的语言规则，并能及时作出相应的反应。

（4)文学作品：学习活动喜欢不同形式的文学作品，主动积极地参加文学活动;知道文学作品语言与日常生活语言的不同进一步感受文学作品的语言美;学习理解文学作品的人物形象感受作品的情感基调，能运用较恰当的语言、动作、绘画形式表现自己的理解;能根据文学作品提供的线索，扩展想象，仿编或续编一个情节或一个画面。

（5)早期阅读：能仔细观察图画书画面的人物清节、看懂单页多幅的儿童图画书的内容，增强预知故事情节发展和结局的能力懂得爱护图书，知道图书的构成，有兴趣模仿制作图画书在阅读过程中初步了解汉字的由来和汉字认读的规律，并有主动探索汉字的愿望;喜欢描画图形，尝试用有趣的方式练习汉字的笔画。

材料2：妈妈的最爱

小女孩说：“兔子先生，帮帮忙好吗？我想送妈妈个她喜欢的东西。”

“妈妈喜欢的东西？噢，那一定是个好礼物。”

“妈妈喜欢红色。”小女孩说。

“红色？又不能送‘红色’给你妈妈。”兔子先生沉思着说，“如果是红色的东西呢？比如，红色的小鸟。”

“不行，不行，妈妈喜欢小鸟停在树上。”

“红色的消防车呢？"

“不行，不行，妈妈不会喜欢红色的消防车!"

“那，送草莓好了”

“那个好，妈妈最喜欢草莓了。”

“可是，我还想再送点别的像黄色的东西。”

“恩……金丝雀的黄色的!”兔子先生说

“妈妈喜欢小鸟停在树上。”

“那，奶油是黄色的，妈妈喜欢奶油吗？”

“我们家已经有奶油了。”

“香蕉是黄色的。”

“对了，这个好。妈妈最喜欢香蕉了。”

“可是，我还想送点别的。”

‘你妈妈喜欢什么呢？”

“妈妈喜欢绿色。”

“送翡翠给你妈妈吧!这会是一份很棒的礼物。”

“翡翠太贵，我买不起。”

“豌豆和菠菜呢？豌豆的绿色的，菠菜也是绿色的。”

“不行，我们家晚餐都吃这个。”

“苹果呢？青苹果好吗？”

“就这个，这个最好了."

“你看，有草莓、香蕉和青苹果。可是，我还没有篮子。”

“我有篮子.”兔子先生说。

小女孩接过篮子，把红色的草莓、黄色的香蕉、绿色的苹果放进去。礼物准备好了。

“兔子先生，谢谢你。”

“不客气，可以帮你，我也很高兴啊!再见!"